Mirtone Service & Repair Forum
I am repairing a door lock at an apartment block showing these symptoms.A transformer feeding the MA-485 is outputting 19.25 volts...will this harm the unit.It is a 16 volt amplifier.B when an apartment station depresses the door button the output at the amplifier terminals for the ac door reads 19.25 volts...but when it is released it only drops to 18.85 volts...which makes me think the relay is stuck on the amplifier.....bottom line do I need a new controller?C the electric strike shows a rating of 24 vac? how could this function well on a 16 volt system?It appears to have been part of this system for some time..and the caretaker has said there are problems with the system as far as people getting in without being buzzed. what is the lowest voltage a 24 volt buzzer could activate at?
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Recent 89 Comments
I'm experiencing some issues with the Mirtone 749044 25412275rev7 Zone Board... something seems to have stopped working.
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Hello, could you please provide repair information for Mirtone 749044 25412275rev7 Zone Board? It has stopped working and we need a replacement. Thank you.
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My Mirtone 79045-2 alarm board is malfunctioning, and I need a technician to repair it
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I am following up once again regarding the Mirtone 749044 25412275rev7 Zone Board issue. The unit is still down. Please provide an update at your earliest convenience.
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Hi there, I need repair info on a Mirtone 79045-2 Alarm Board that stopped working. Can you please provide guidance on how to fix or replace it? Thank you!
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Can the Mirtone 749044 25412275rev7 Zone Board be repaired or replaced? Just trying to check this off my to-do list.
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Hi...I have one customer with no voltage to the door striker but have confirmed the striker works. Transformer is ok! Do you have the parts for this, relay etc to ship so I can repair it or do you have a re-conditioned unit for sale. The seniors in thecomplex want it yesterday..Can you help?R.Jim Wh…Purchase or Repair: 
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The Mirtone 79044 25412275rev7 Zone Board in the warehouse is not functioning as expected. It is exhibiting unusual behavior and not operating normally.
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Hello, I am trying to obtain a manuel for the mirtone 7800 series fire alarm system. I can\'t seem to locate one. Could you direct me to where i can either down load one or purchase one? Thank you,Selina
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The Mirtone 79045-2 alarm board is malfunctioning, causing delays in production. Immediate repair service is needed to avoid further disruption to the production line. Please address this issue urgently.
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Mirtone 79045-2 Alarm Board is malfunctioning, urgently requires repair to resume production. Requesting immediate attention to minimize downtime.
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No power being supplied to the door lock. Unit is clicking when door release pressed but no power being supplies to door lock. Anyone have an answer or solution for this ?
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The Mirtone 79044 25412275rev7 Zone Board in the warehouse is exhibiting unusual behavior, deviating from its normal operations.
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The Mirtone 749044 25412275rev7 Zone Board in the warehouse is not functioning as usual. It is displaying unusual behavior, but I am not certain what the specific issue is.
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The Mirtone 749044 25412275rev7 is not functioning properly. Please take a look and assess the issue. Thank you.
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Unit 79044 25412275rev7 (Zone Board) went down mid-shift. Need follow-up during the day.
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Hello, the Mirtone 79044 Zone Board is displaying error code ER345. The alarm is continuously sounding, and all zones are appearing as inactive. Urgent assistance is required to troubleshoot and resolve this issue
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The Mirtone 749044 25412275rev7 is a Zone Board that is not currently working.
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Unit 25412275rev7 (Mirtone 79044) zone board is malfunctioning. Needs attention ASAP. Please check and reset during AM shift.
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Can the Mirtone 79044 board be repaired or bought? I'm trying to check this off my to-do list.
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The Mirtone 79044 25412275rev7 Zone Board is malfunctioning, leading to a disruption in our production line. Immediate repair or replacement is necessary to resume operations
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Need repair for Mirtone 79044 25412275rev7 Zone Board. Not functioning, looking for technician to fix industrial unit
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The Mirtone 79045-2 alarm board in the warehouse is exhibiting abnormal behavior. It is not functioning as it typically does, and its operations seem odd.
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Do you have a Mirtone 79044 25412275rev7 Zone Board available for sale or repair? We need to keep production running.
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I am repairing a door lock at an apartment block showing these symptoms.A transformer feeding the MA-485 is outputting 19.25 volts...will this harm the unit.It is a 16 volt amplifier.B when an apartment station depresses the door button the output at the amplifier terminals for the ac door reads 19.…Purchase or Repair: 
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The maintenance team reported an issue with the Mirtone 79044 25412275rev7 Zone Board. They need assistance troubleshooting it.
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Our Mirtone 749044 25412275rev7 Zone Board stopped working. Need a replacement but can't find one. Please provide repair info asap. Thank you!
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Hello, I am looking for assistance with a Mirtone 79044 25412275rev7 Zone Board. Can you please provide information on troubleshooting or repairing this part for my client? Thank you.
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We are experiencing a critical issue with the Mirtone 71269F Fire Alarm Panel on the production line. The system is failing to trigger alarms during the testing phase, posing a serious safety risk. Urgent repairs are required to get operations back on track quickly.
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Could you please provide me with pricing and availability information for the Mirtone 79045-2 Alarm Board? I am looking to source one quickly and would appreciate your assistance. Thank you.
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The Mirtone 79044 25412275rev7 Zone Board in the warehouse is behaving unusually. It is not functioning as it typically does, displaying odd behavior.
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Hello, I am inquiring about a Mirtone 79045-2 Alarm Board for a client. They are experiencing issues with it and would like to know if you are able to provide repair services for this specific part. Thank you.
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Could you please verify if the Mirtone 79044 25412275rev7 Zone Board is still supported by the manufacturer or if replacement parts are available for it? Thank you.
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The Mirtone 749044 25412275rev7 Zone Board in our warehouse is exhibiting unusual behavior. It is not functioning as it normally does. Please investigate this issue at your earliest convenience.
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Board failure on Mirtone 79044 25412275rev7 Zone Board identified during maintenance rounds. Needs immediate attention to avoid disruptions.
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looking for a unitsystem is in an apartment complex. tenant can operate one entrance and hear from same however 2nd entrance does not work
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We have a mirtone EC200 installed in a 36 unit Sr. Care complex with standard call switches in each unit and a call light outside the entry door on the exterior of each unit. The system is powered with a 24VAC transformer. We would like to replace the outdoor lights with a Horn/Strobe combination un…Purchase or Repair: 
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Hey, just a heads up, we've got a failed drive or board on Mirtone 79045-2 in need of your attention ASAP. Keep me posted.
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Mirtone now owned by GE and system is 20+ years old - No manuals or hookup diagram left - please help
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Can you please confirm if the Mirtone 749044 25412275rev7 Zone Board is still supported or if parts are available for repair? Thank you.
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Do you have a Mirtone 749044 25412275rev7 Zone Board available for sale or repair? Need to get production back up quickly.
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Mircom Intercom Amplifer -MA-485 \"do,s not have any audio sound aplification needed to operate an apartment intercom station . I beleive when the oringinal split transformer 8v for door and 16 vac for the audio burned out\" because the pos+ side came lose and grounded to the neg - side the replacem…Purchase or Repair: 
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Could you please confirm if the Mirtone 79044 25412275rev7 Zone Board is still supported or if replacement parts are available for this older unit? Thank you.
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Can the Mirtone 79045-2 Alarm Board be repaired or purchased? I'm looking to check this off my to-do list. Thank you!
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