Summer just need to know how to get mastercool evap up and running for summer

The only parts that could squeal are the fan and the pump. It may be a bearing on the fan or the motor.

Saw several (but very limited) videos related to this online. All have indicated it as a problem with the control panel itself. I had a technician examine and that also was the conclusion with my own MC window evap not working. Fan would turn on briefly, go from high to mid to low on its own, then shut off. Lights woild also flash as it would toggle from each fan speed aling with oump going on then off on then off like crazy. I plugged the cable for the pump into an extension as indicated by one of thos very limited online videos and that has worked without any problems. My pump has been providing the needed water since doing that for hours. The fan blades however do not have a separate means to run without installing a control for the nlade speed it seems. So a delimna there. Changing the control panel costs about $100 for the part. Maybe the newer model part which runs $49 might work? The very limited videos that do nothing to show the process of how it’s done all show them installing their own control panel whether that is a turn switch or a thermostat system.

http://www.stifflerssurplus.com/p-5162-adobe-mastercool-p500a-qldf60-evap-cooler-replace-motor-new.aspx
This is something i found online.

had this problem a few months ago, needed to replace the motor.

Yes, it needs to be cleaned. Go to your local home store and (in the evap cooler section) pick up a bottle of evap cleaner/scale remover. Just follow the directions on the bottle. It will last MUCH longer with proper care and cleaning.

I have the wiring diagram in the cooler. I can photograph and send it to you. Do you still need it?

This unit is a cooling unit only. I don't know what switch you are looking at but I don't think it's for the evap. cooler(swamp cooler). I am in the Phoenix, Arizona area and it's very common to have a evap. cooler and a seperate heat/cool system as on the hottest days the evap. cooler doesn't cool enough. I hope this helps. Please give me a positive rating. Thank you.

Look for a reset switch on the unit, press it and try again.

If there is no reset switch, unplug the unit entirely if possible, wait a minute and plug it back in.

Sometimes electronics get confused and need to start over. Let us know if that works.

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