69-1557
16
Troubleshooting

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continued
Symptom Action
Heating does not come on. •Check if the circuit breaker is tripped—reset the circuit
breaker.
•Check if the fuse is blown—replace the fuse.
•Check if the switch at the equipment is in the Off
position—set to On position.
•Wait five minutes for the system to respond.
•Set SYSTEM switch to Heat.
Cooling does not come on. •Check if the circuit breaker is tripped—reset the circuit
breaker.
•Check if the fuse is blown—replace the fuse.
•Check if the switch at the equipment is in the Off
position—set to On position.
•Wait five minutes for the system to respond.
•Set SYSTEM switch to Cool.