Liming | Bypassing too much water | Inspect bypass for movement, if no movement, |
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| U.G. not functioning | Replace if no movement when heated. |
Leaking at well. | Overacid | Replace well and maintain water chemistry |
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Leaking at heat exchanger. | Overacid | Replace heat exchanger and maintain |
Gasket brittle and leaking - | Heater running after pump | chemistry properly. |
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(overheated). | shuts off | See pressure switch adjustment. |
| Refractory damage | Replace refractory. |
| Sooted heater | Determine cause of sooting and correct. |
ELECTRICAL ( MILLIVOLT)
RAYPAK POOL OR SPA HEATER ELECTRICAL
CHECK WITH MV GAS VALVE
CAUTION: For qualified service personnel only.
1.Filter must be on with adequate water flow through heater.
2.Gas valve must be "ON" position. Thermostat set higher than pool water temperature.
3.Jumpers are for temporary check only. If left in place, they could cause the heater to burn up.
Light pilot
If pilot burner remains lit.
Jump across both "TH"
wires on gas valves
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remove jumper |
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Replace gas valve
If pilot burner goes out when main burner lights or when gas valve knob is released
Remove both "TH" wires from gas valve. Relight pilot
If pilot burner does not light
Check gas supply, gas line size, gas pressure. Also check for insects or debris in pilot output.
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| Clean filter |
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| Jump across each high |
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22
