Zodiac JXI200N, Рабочая тетрадь

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JXi Troubleshooting Guide
Note: If the Blower runs continuously, unplug F1/F2 connector from the Ignition Control, if the Blower goes off replace the Ignition Control. Of
the Blower stays on, check for shorted wires between the Ignition Control and PDB or from the PDB and the Blower.
Service Codes
DISPLAY FUALT CAUSE REMEDY
Fault- Pump
1. Pump is not running
1. This is a normal display when the control is in Maintain Temp
mode. NO SERVICE REQUIRED.
NO FLOW
1. Pump is not running
2. Low pump pressure.
3. Pressure switch fault
1. Check breakers and power source, recheck wiring , set time
clock and current time.
2. Clean filter, clear blockages, check position of all valves in
plumbing system
3. Adjust or replace pressure switch. Refer to qualified service
personnel.
FAULT –
HIGH
LIMIT
1. Water Temperature in heater
exceeds the Internal limit.
2. Limit switch fault.
1. Verify function of high limit switches. Perform temperature
rise test. Identify and correct cause of overheating.
2. Identify loose connections or replace switches. Refer to
qualified Service Personnel.
FAULT-
FUSELINK/FIEL
D
1. Vent Limit fault.
1. Identify loose connections or replace Vent Limit. Refer to
qualified Service Personnel.
FAULT-
CHECK
IGN
CONTROL
1. Broken, split, pinched or
disconnected fan/switch tubing.
2. Fan not operating.
3. Fan running slow or premature fan
failure.
4. Air flow restricted at intake or
discharge.
5. Oscillating pump pressure.
6. Low gas supply pressure.
7. No flame at burners.
1. Check tubing and replace if necessary.
2. Correct fault or replace fan. Refer to qualified service
personnel.
3. Verify proper wiring for 120 or 240 VAC. Refer to qualified
service personnel.
4. Check for proper clearances around heater and for adequate
room ventilation if enclosed. Inspect for blockages or
restriction at discharge of flue. Refer to qualified service
personnel.
5. Clean filter or identify and repair cause of pump oscillation.
6. Identify and correct loose wiring connections, or problems with
igniter, flame sensor, gas valve, or ignition control. Refer to
qualified service personnel.
Fault-
Shorted H2O
Sensor Or
Open Water Sensor 1. aulty wiring or connection.
2. Failed sensor.
1. Inspect sensor wiring. Ensure sensor is connected into Power
Interface Board.
2. Replace temperature sensor. Refer to qualified service
personnel.
N O
Blower is ON – Start on Step 13
STEP 13- Check Air Pressure Switch
24 VAC between Orange (NO) wire at the Air
Pressure Switch and Yellow (1) wire on Transformer?
YES
STEP 14- Check Power to PSW
N O
24 VAC between Orange (12) wire at the Ignition
Control and Yellow (1) wire on Transformer?
YES
STEP 15 - Check Hot Surface Igniter
N O
After Blower comes on wait at least 15 seconds
(pre-Purge). Is Igniter glowing?
YES
STEP 16- Check for Ignition
N O
After the HIS begins to glow, wait approximately
40 seconds. Did the burners ignite?
Make certain Blower s on and combustion chamber is sealed. Check air tubes for kinks or
holes. Make certain front air tube is connected to the positive (+) side and back/lower air
tube is connected to negative (-) side of the Air Pressure Switch. If all are OK replace the
Air Pressure Switch.
Check wire connections. Replace Orange wire.
Check voltage between K and J of the Ignition Control. If 105 to 130 VAC, check wires and
connectors to the Igniter, if OK, replace Igniter. If voltage is less than 105 VAC check
incoming voltage between L1 and L2, if voltage is 105 to 130 VAC replace Ignition Control.
Check voltage on Brown (13) wire at terminal VAL of the Ignition Control. Is there 24 VAC at VAL?
N O
YES
YES Replace Ignition Control.
Check supply gas pressure. If OK,
replace Gas Valve.
STEP 17- Check Burners operation
Do Burners stay on beyond 7
seconds?
YES
Step 18 – Verify heating
Heater is operating properly.
Heater is not recognizing the flame (flame rectification). Any of the following can prevent flame rectification:

Low gas pressure.

Poorly connected or missing ground wire.

Corroded or dirty Flame Sense Rod.

Ignition Control not sending flame sense signal.

Or there is insufficient current when the gas valve is powered. Current loss can be caused by any of the following:

Excessive corrosion on wire terminals.

Frayed or over heated wires.

Pitting contact points, usually at the Water Pressure Switch or High Limits.
To determine whether the problem is lack or rectification or loss or current, check voltage at the Black/Yellow(11) wire at
Ignition Control. Keep the meter probe at this location and watch the reading. If, after the gas valve receives power, the
voltage slowly drops until the gas valve shuts off, then returns to normal, the problem is due to loss of current.
Flow Rates (gpm)
BTUs MIN MAX
GAS PRESSURE
Inches of Water Column
Natural LP
Max Inlet 10.5 14
Min Inlet 4 4
Gas Offset -0.2 -0.2
200 20 120
260 25 120
330 30 120
400 40 120