Slant/Fin CHS-399 - Manual (Page 69)

CHS Series Installation and Operation Instructions │ Slant Fin Corp.
69
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