Install Instructions

CHS Series Installation and Operation Instructions │ Slant Fin Corp.
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Table 15-1 Troubleshooting Chart
PROBLEM
POSSIBLE CAUSE
CORRECTIVE ACTION
Blown fuse
Check Fuse "A" using the procedure described
above. Fuse "A" protects the blower as well as the
ignition spark generator and appliance pump.
Faulty blower
Measure voltage across pins 1 & 2 (black and
white wires) of 3-position connector on wiring
harness. If 120VAC detected, replace power
connector and remove 5-position signal connector.
Blower should rotate at high speed. If blower does
not rotate, replace blower.
Table 15-2 Thermistor Resistance vs. Temperature
Temp °F (°C)
Resistance Ohms (Ω)
Temp °F (°C)
Resistance Ohms (Ω)
-22 (-30)
176,133
122 (50)
3,603
-4 (-20)
96,761
131 (55)
2,986
14 (-10)
55,218
140 (60)
2,488
32 (0)
32,650
149 (65)
2,083
41 (5)
25,390
158 (70)
1,752
50 (10)
19,900
167 (75)
1,481
59 (15)
15,710
176 (80)
1,258
68 (20)
12,490
185 (85)
1,072
77 (25)
10,000
194 (90)
918
86 (30)
8,057
203 (95)
789
95 (35)
6,531
212 (100)
680
104 (40)
5,327
230 (110)
506
113 (45)
4,369
-
-
Table 15-3 Hold and Lockout Codes
Code
Description
Note
0
None
Hold / No lockout
1
Unconfigured safety data
Lockout
2
Waiting for safety data verification
Lockout
3
Internal fault: Hardware fault
Hold
4
Internal fault: Safety Relay key feedback error
Hold
5
Internal fault: Unstable power (DCDC) output
Hold
6
Internal fault: Invalid processor clock
Hold
7
Internal fault: Safety relay drive error
Hold
8
Internal fault: Zero crossing not detected
Hold
9
Internal fault: Flame bias out of range
Hold
10
Internal fault: Invalid Burner control state
Lockout
11
Internal fault: Invalid Burner control state flag
Lockout
12
Internal fault: Safety relay drive cap short
Hold
13
Internal fault: PII shorted to ILK
Hold / Lockout
14
Internal fault: HFS shorted to LCI
Hold / Lockout
15
Internal fault: Safety relay test failed due to feedback ON
Lockout
16
Internal fault: Safety relay test failed due to safety relay OFF
Lockout
17
Internal fault: Safety relay test failed due to safety relay not OFF
Lockout
18
Internal fault: Safety relay test failed due to feedback not ON
Lockout
19
Internal fault: Safety RAM write
Lockout