Jandy JXi 200 Installation And Operation Manual
Also see for JXi 200: Installation and operation manualInstallation and operation manualInstallation and operation manual
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Contents
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Page 37ENGLISHJandy ® Pro Series, JXi ™ Gas-Fired Pool & Spa Heater | Installation & Operation ManualSection 10. Troubleshooting10.1 Common ProblemsZodiac Pool Systems, Inc. strongly recommends that youcall a qualified service technician to perform all serviceand repairs on the heater. To locate a licensed or qualifiedtechnician service company, call Jandy Technical Supportat 800.822.7933, or visit www.jandy.com,The following table lists some of the most commonproblems when running the heater. Most problemsoccur when the heater is started for the first time afterinstallation or at spring start-up.Symptom Possible Cause RemedyPump not operating • No power.• Pump defective.• Incorrectly wired.• Time clock settings not synchronizedwith 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) flame lifts and goes out(4) short yellow streaked flame• Wrong gas.• Lean fuel/air mixture— low supplypressure.• Lean fuel/air mixture— too muchcombustion air.• Rich fuel/air mixture— high manifoldpressure.• Rich fuel/air mixture— too littlecombustion air.• Make sure the gas supply matches the gas typeindicated on the rating plate.• Correct gas supply inlet pressure to:- (NATURAL GAS) 4.0 “ W.C. min - 10.5” W.C. max- (PROPANE) 4.0 “ W.C. min - 14.0” W.C. max• Offset pressure should be -0.2” W.C. Use a digitaldifferential manometer to verify correct offset pressure.Adjust offset pressure as needed. See Section 4.3• Connect a digital differential manometer to blower throatand gas valve port to obtain differential. Make sure thedifferential value falls within the specified range for theheater size. See Section 4.3• Gas meter too small.• Gas line from meter to heater too small.• Check blower inlet grill for obstruction.Not enough heat(1) heater is slow to heat up(2) heater not maintaining settemperature(3) Low temperature rise• Heater size inadequate.• Filter pump not running long enough.• Thermal regulator valve (TRV) isopening early or is permanently open.• Heater plumbed backwards.• Replace with heater of higher output.• Replace TRV.• Heater is condensing. Flue product moisture willcondense at the start-up until the heater watertemperature reaches the normal operating conditions.• Correct the plumbing.Heater pounding or knocking • Water flow 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 filter or basketsIgniter lights but heater doesnot fire• Gas valve is not ON.• Air in gas line.• No power to gas valve.• Low gas pressure/volume.• High burner throat pressure.• Gas valve failed.• Flip the switch to “on” position.• Cycle ignition sequence until air is out of the gas line.• Check controls for proper operation.• Check supply pressure/volume and verify proper gassupply pipe size.• Replace gas valve.NOTE: Gas valve failures are extremely rare. Pleaseconfirm this as the root problem before replacing. |
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