FURN H/TEMP

There are many temperature switches on the two water manifolds inside the transformer enclosure on the carriage. These switches manually reset by pushing a button on top of them. Make sure power is off when resetting switches, as this circuit is 120VAC. Push buttons on switches until the fault clears.

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.

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