Instruction manual
Power on to control 
panel? 
Check: 
1. Control panel man/off/auto 
switch position. 
2. Fan circuit breaker(s)  
3. Fan contactor and 
associated wiring. 
All air 
distribution 
fans off? 
YES 
If the fan(s) still fail to 
operate normally, 
please contact 
the AmbiRad 
service department. 
YES 
Check: 
1. Power supply. 
YES 
NO 
Air distribution fans 
NO 
Single fan 
unit off? 
Check: 
1. Motor thermal trip (may run 
when cool), test motor. 
2. Motor wiring. 
3. Motor plug/socket. 
9. Fault Finding. 










