Question about Mitsubishi Heating & Cooling
Circuit board no. DM76Y559G01 ITS THE BOARD THAT MAIN WIRES ARE CONECTED TO IE.S1. S2.S3
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Posted on Jan 02, 2017
if your power vent moter is not running you should not have have glowing ignitor.Frist the vent moter must close an air prove switch in series with the idnitor .seems you have a stuck air prove switch.Its the one with a hose attached
Posted on Apr 07, 2009
SOURCE: Controller not working
The units were set up as master/slave by removing a jumper on the indoor board of the 0V unit. The CENTRALISED CONTROLLER display was removed by changing one of the indoor boards dipswitch settings.
Posted on Jun 11, 2009
SOURCE: I have a 10 year
Sadly this is a poor service without a proper sincere logical advice. To spend $2500 for a 10 year old set is surely too bad , as they have finally almost constructed a new set except the body/condensers.
In the first place I do not want to worsen your problem with giving an advice remotely and asking you to do the job after such a whole lots of spares are changed and spent. I presume these changes of spares were done assuming the fault without a confirmation, hence my advice is to present the matter with bills along with a legal notice to the Mitsubishi service manger closer to you so that a proper action will be taken.
You have spend a lot for this unit and it is not adviceable to spend more before the actions done earlier is justified.
All the spares that were changed can be reset one by one to see if there was a failure. Also you have not mentioned to the forum the initial fault of the unit except it does not work.
So even after the main boards were replaced the possible fault could have been the compressor. make sure that the capacitor to the compressor is good and the motor runs. If so the cooling is due to poor compressor pumping. Please decide if you need to replace and take another chance as I would advice you to get back the money for the spares put in and go for a new unit...... assuming the compressor needs a change.
Posted on Oct 22, 2010
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