K3 | K4 |
ECO/VENT PRESSURE |
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NO INCOMING LINE VOLTAGE OR 24 VOLT
Line LED & 24 VAC LED Off
POSSIBLE CAUSE | REMEDY |
LINE | 24 | SWITCH | GAS | GAS | |
| VAC SWITCH | VALVE | VALVE | ||
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| RLY 1 | RLY 2 | |
K1 |
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| GAS | |
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| VALVE | |
COMB |
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BLOWER |
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| K1 | |
K5 |
| CONTROL |
| K5 | |
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IGNITER | ELECTRONICS | K3 | |||
K4 | |||||
ELEMENT |
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| CONTROL | WATER |
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| HEALTH | TEMPERATURE |
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1.No Input power.
2.Wiring disconnected
3.One or more wiring recep- tacles disconnected from control.
4.LED burned out.
5.Defective transformer.
6.Transformer wiring problem.
1.Apply Power
2.Check all wiring
3.Reconnect plugs on control. Confirm all are fully seated.
4.Replace display board.
5.Replace transformer.
6.Repair transformer wiring.
NOTE:
The transformer is of Class II variety and has an internal non- replaceable fuse. If blown, a problem may exist with the control which is affecting the transformer. In such cases, it is recom- mended the control should be replaced as well.
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| K3 | K4 |
LINE | 24 | ECO/VENT | PRESSURE | GAS | GAS |
| VAC | SWITCH | SWITCH | VALVE | VALVE |
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| RLY 1 | RLY 2 |
K1 |
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| GAS |
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| VALVE |
COMB |
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BLOWER |
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| K1 |
K5 |
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| CONTROL |
| K5 |
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IGNITER |
| ELECTRONICS | K3 | ||
| K4 | ||||
ELEMENT |
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| CONTROL | WATER |
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| HEALTH | TEMPERATURE |
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IGNITOR LOCKOUT
Ignitor Element LED Flashing
| POSSIBLE CAUSE |
| REMEDY |
1. | Broken ignitor element. | 1. | Replace ignitor element. |
2. | Ignitor unplugged. | 2. | Plug in ignitor. |
3. | Insufficient ignitor current | 3. | Monitor ignitor current draw. |
draw. | See note below. | ||
NOTE:
The ignitor current is monitored by pressing the blue button to the left of the LEDs during the ignitor
18