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5. Heater Not Firing (cont.)
Service mode cancels all scheduled automation and also suspends safety features such
as 'Freeze Protection'. If the heater only fires while in service mode, make sure freeze
protection is not active, also verify that solar priority is not overriding regular heating.
Service mode test
Inspect heater display
Step 5C
Step 5D
Press the service mode button AND turn on the main
Verify the heater display is ON AND the heater has
circulation pump. Press the heater button to force it on.
been set for BO, which stands for bypass operation (if
If the heater LED illuminates AND the heater fires, then
applicable). Also, inspect heater for errors. IF the
take the system out of service and go to step 5E. IF the
heater displays an error, please contact tech support
heater LED illuminates but the heater does not fire, go
for more assistance: (908) 355.7995. IF no errors
to step 5D.
appear, proceed to step 5E.
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