American Water Heater HPE10260H045DV, HPE10280H045DV manual Operating Costs, Cap T&P discharge pipe

Troubleshooting Common Service Problems

PROBLEM	POSSIBLE CAUSE	TEST/CORRECTIVE
		ACTION
HIGHER THAN EXPECTED	Electric mode selected	Change to efficiency or hybrid for
OPERATING COSTS:		reducing energy costs
	Ambient air temperature	Ambient air temperature must
	preventing compressor operation	be ≥ 45°F and ≤109°F to enable
		compressor operation.
	Air filter dirty	Clean or replace air filter
	Temperature set point too high	Decrease set point temperature;
		see “Adjusting Set Point
		Temperature” section (p.13)
	Water connections to unit reversed	Ensure the cold connection is
		at the bottom and that the hot
		connection is at the top
	Heat lost through long run of	Insulate exposed piping. It may be
	exposed pipe or a recirculation	necessary to discontinue use of
	system	re-circulation system.
	Hot water leak at faucet or piping	Repair hot water leaks
	Sediment or scale build up in tank	Drain and flush tank. Water
		conditioning may be required to
		minimize build up
DRIP FROM	Excessive water pressure	Check water supply inlet pressure.
TEMPERATURE &		If more than 80 PSIG, install a
PRESSURE RELIEF VALVE:		pressure reducing valve
	Add or service a thermal	See “Closed System/Thermal
(Warning: Do not plug or	expansion tank	Expansion” section (p.10)
cap T&P discharge pipe.)	Malfunctioning Temperature &	Replace the Temperature &
	Pressure Relief Valve	Pressure relief valve.
OTHER:	The heat pump does not run in	If ambient temperature is greater
	efficiency mode	than 109°F or less than 45°F the
		heat pump will not operate.
LEAKS AROUND THE	The gasket and or threads are	Re-seal or replace gasket. See
ELEMENTS:	leaking	“Heating Element Replacement”
		(p.24), for draining and filling
		procedures.
		See also “Leaks around Tank
		Fittings”

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