Jandy 200 User Manual

Page 34
ENGLISH
Jandy
®
Pro Series, JXi
™
Gas-Fired Pool & Spa Heater
|
Installation & Operation Manual
The following table lists some of the most common problems when running the heater. Most problems occur when the
heater is started for the rst time after installation or at spring start-up.
Symptom Possible Cause Remedy
Pump not operating • No power.
• Pump defective.
• Incorrectly wired.
• Time clock settings not synchronized with
actual time.
• Check circuit breakers and power source.
• Replace the pump.
• Recheck wiring.
• Check time clock setting.
Unstable combustion-
(1) heater turns off and on
(2) heater ignites slowly
(3)ameliftsandgoesout
(4)shortyellowstreakedame
• Wrong gas.
• Lean fuel/air mixture— low supply
pressure.
• Lean fuel/air mixture— too much
combustion air.
• Rich fuel/air mixture— high manifold
pressure.
• Rich fuel/air mixture— too little combustion
air.
• Make sure the gas supply matches the gas type
indicated on the rating plate.
• Correct gas supply pressure to 4.0 “ W.C.
• Increase offset gas pressure. Rotate adjustment
screw clockwise.
• Correct gas supply pressure to 4.0 “ W.C.
• Decrease offset gas pressure. Rotate adjustment
screw counter-clockwise.
• Check offset pressure is set to —0.2” W.C. If this is
set properly, connect manometer to blower throat and
gas valve port to obtain differential. Make sure the
differentialvaluefallswithinthespeciedrangefor
the heater size (see Table TBD).
Not enough heat
(1) heater is slow to heat up
(2) heater not maintaining set
temperature
• Incorrect gas valve offset pressure.
• Heater size inadequate.
• Filter pump not running long enough.
• Gas meter too small.
• Gas line from meter to heater too small.
• Correct gas supply pressure to 4.0 “ W.C.
• Replace with heater of higher input.
• Check blower inlet grill for obstruction.
Heater pounding or knocking • Waterowthroughheatertoolow.
• Failed Thermal Regulating Valve (TRV).
• Look for obstruction or closed valve in system.
• Check for damaged internal bypass.
• Variable speed pump set too low
• Dirtylterorbaskets
Low temperature rise • Low water temperature.
• Heater plumbed backwards.
• Heater is condensing. Flue product moisture will
condense at the start-up until the heater water
temperature reaches the normal operating conditions.
• Faulty or broken Thermal Flow Regulator.
• Correct the plumbing.
• TRV failure.
Igniterlightsbutdoesnotre • Gas valve is not ON.
• Air in gas line.
• Gas valve failed.
• No power to gas valve.
• Low gas pressure.
• High burner throat pressure.
• Flip the switch to “on” position.
• Cycle ignition sequence until air is out of the gas line.
• Replace gas valve.
• Check controls for proper operation.
• Check supply pressure.

Jandy 200 Specifications

General

Brand	Jandy
Model	200
Category	Swimming Pool Heater
Language	English