Raypak XTherm 1005A Installation And Operation Manual page 54

8.4.2. LED Error Code Listing
Active errors detected are indicated by LED lights on the PIM.
Error Mode LED Flash Code on PIM
Normal Operation Red LED OFF
Red LED Steady ON, Green
ID Card Fault
Power LED OFF
Internal Control
Red LED Steady ON
Fault
N/A Red LED – 1 Flash
False Flame Error Red LED – 2 Flashes
Ignition Lockout
Red LED – 3 Flashes
Fault
Ignition Proving
Red LED – 4 Flashes
Current Fault
Low Voltage Fault Red LED – 5 Flashes
N/A Red LED – 6 Flashes
Hi-Limit Fault Red LED – 7 Flashes
Sensor Fault Red LED – 8 Flashes
N/A Red LED – 9 Flashes
Water Pressure
Red LED – 10 Flashes
Fault
Blower Speed
Red LED – 11 Flashes
Fault
N/A Red LED – 12 Flashes
Hi-Temperature
Red LED – 13 Flashes
Delta Fault
Ft_bus
Communications Red LED – 14 Flashes
Fault
General limit
Red LED – 15 Flashes
circuit fault
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Recommended Troubleshooting
Check that the proper ID Card is securely connected. Perform a power and
system reset
Perform a power and system reset. If the fault remains, replace the PIM
N/A
Check for proper gas valve closure. Clean burner and electrodes
Check the gas supply. Check transformer. Check igniters. Check wiring.
Press reset button on PIM/membrane switch. Recycle power
Check HSI element. Replace as necessary.
Check the 24VAC input voltage – the voltage must be above 18.0VAC for
proper operation. Replace transformer as necessary
N/A
Check for proper water flow. Check hi-limit setting and outlet sensor.
Check the VERSA IC Control for fault identification. Check sensor and wiring
Check wiring at J8, pins 1 and 3 for loose or missing jumper
Check system piping for leaks. Check water pressure switch (if equipped)
and connections. Check wiring on PIM at J1, pins 6 and 7 for loose or
missing jumper
Verify the tachometer signal and the connections at terminals J5 on the PIM.
Confirm power to heater is at or above minimum required
Check wiring on PIM at J1, pins 3 and 4 for loose or missing jumper.
Check pumps operation. Confirm proper water flow across heat exchanger
(Delta T)
Verify that the VERSA IC Control is connected and operating properly.
Check the cable between the PIM and the VERSA IC Control
Check the VERSA IC for fault indication and troubleshooting information
Table AB. PIM LED Error Codes