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Electrical ( millivolt) – Raypak Versa 105B User Manual

Page 27

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If pilot burner remains lit.

Jump across pressure

switch terminals

If main burner does not

fire, remove jumper

Check for adequate water

flow from filter

Replace pressure switch

Jump across thermostat

If main burner fires,

remove jumper

If main burner does

NOT fire...

Jump across each high

limit and remove jumper

Replace thermostat

Replace high limit that

caused heater to fire

Jump across both "TH"

wires on gas valves

Check gas supply, gas

line size, gas pressure.

Also check for insects

or debris in pilot output.

If pilot burner

does not light

Light pilot

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.

If pilot burner goes out

when main burner lights

or when gas valve knob

is released

If burner does not remain

lit, attach millivolt meter

and read pilot output.

If below 500mV, check

gas pressure. Also check

for insects or debris in

the pilot burner

If main burner fires,

remove jumper

Replace

gas

valve

If main burner does not

fire, remove jumper

Remove both "TH"

wires from gas valve.

Relight pilot

If pilot burner stays on

Problem is a wire or

component short to

cabinet or low gas

pressure

If above 500mV,

replace gas valve

Clean filter

If main burner fires,

remove jumper

Leaking at well.

Overacid..................................

Replace well and maintain water chemistry

properly.

Leaking at heat exchanger.

Overacid..................................

Replace heat exchanger and maintain

chemistry properly.

Gasket brittle and leaking -

Heater running after pump

(overheated).

shuts off...................................

See pressure switch adjustment.

Refractory damage.....................

Replace refractory.

Sooted heater............................

Determine cause of sooting and correct.

RAYPAK POOL OR SPA HEATER ELECTRICAL

CHECK WITH MV GAS VALVE

If output is still low,

replace pilot generator.

Liming

Bypassing too much water............ Inspect bypass for movement, if no movement,

replace.

27

ELECTRICAL ( MILLIVOLT)