Thermo Products OPB (24 ユーザーズマニュアル

All installations and services must be performed by qualified service personnel. 
 

2.  Is the sub-base of the thermostat switched to the “COOL” position? 

 

3.  Is the temperature setting on the thermostat low enough to bring the cooling 

system on? 
 

4.  Has the unit stopped cooling, making it necessary to wait several hours before 

the unit will restart?  The fan motor, or compressor, may have shutdown on 
thermal-overload due to overheating.  If this event frequently occurs, call your 
qualified heating contractor. 

 

5.  Has it been longer than four minutes since the last cooling cycle finished or since 

power was restored form an outage. 

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