UNIT H/TEMP

One of the temperature switches in the inverter cabinet has tripped. These switches manually reset by pushing a button on the top of them. Make sure power is off when resetting switches, as this circuit is 120VAC.

More commonly, the switch 9-TS1 (104° F) has tripped, and must reset on its own once the water in the system has cooled down. This error usually indicates a problem with the cooling system, such as closed valves or a mis-set/faulty Trerice valve on the Heat Exchanger.

If no cooling water problem is found, check the system for signs of overheating.

VIPs