ELECTRICAL ( STANDING PILOT 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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If main burner fires, |
| If main burner does not |
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remove jumper |
| fire, remove jumper |
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| valve |
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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.
| Jump across pressure |
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| switch | terminals |
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| If pilot burner stays on |
| If burner does not remain |
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| lit, attach millivolt meter |
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| and read pilot output. |
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If main burner fires, |
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remove jumper |
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| component short to |
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| If above 500mV, | ||||||||
Clean filter |
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| Jump across | thermostat |
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| cabinet or low gas |
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| replace gas valve | ||||||||||||||
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| pressure |
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Check for adequate water |
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| If below 500mV, check |
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flow from filter |
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| gas pressure. Also check |
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| for insects or debris in |
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Replace pressure switch |
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| the pilot burner |
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| If output is still low, |
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| If main burner fires, |
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| If main burner does |
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| replace pilot generator. |
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| remove jumper |
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| NOT fire... |
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| Replace | thermostat |
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| Jump across each high |
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| limit and remove jumper |
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| Replace high limit that |
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| caused heater to fire |
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