Aquacal T115, T65, T135 Heater Running but Not Heating, Analog or Digital Controls 12/22/03

Heater Running but Not Heating

Analog or Digital Controls - 12/22/03

START

Is the air being discharged

Noout of the top of the heater 9-12 degrees cooler than the

outside air?

			The defrost light or "FS"
			displayed indicates air
Is the defrost light on, or		temperature may be too low
	Yes		to support the heater's
does the display read : "FS" ?
			operation. Heater will
			remain in defrost until air
			temperature rises.

Yes

Is the pool pump timer set to allow extended operation of the heater?

No

No

No

Ambient

conditions too cold to operate heater.

Problem

Solved.

Is the air Temp. above 40ºF (analog control) or

38ºF (digital control)

?

Yes

Yes No

Call AquaCal for

Assistance:

800-786-7751.

Extend the pool pump's hours of operation to accommodate additional heater run time required in cooler conditions.

Is the heater performing adequately?

Yes

Problem

Solved.

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