H-25C Instruction Manual
Instruction 3015-0216
52
[If occurring during countdown at power-on:]
Note: Verify that the steady-on or flashing condition recurs.
(1) EEPROM failure. Return to Bacharach for repair (component replacement, adjustment).
[If occurring during calibration]
(2) Sensor sensitivity outside of permissible range. Adjust sensor sensitivity (See Subsection 3.1.3)
(3) Sensor has reached end of life. Replace with new sensor. (See Section 5-4)
(4) Calibration gas (liquid) in tank completely used up. Refill tank with liquid R - 134a. (See Section 5.3)
(5) Capillary clogged. Return to Bacharach for repair (component replacement, adjustment).
6.2.9 Liquid R134a in Tank Used Up Too Quickly
The most likely two causes are:
(1) Leakage from gas bleed plug (at capillary receiver section). Check first whether plug is loose. If not,
replace 0-ring.
(2) Leakage from tank seal (gas outlet port 0-ring, or plug area). Replace bad component. (Replace
according to procedures in Section 5.3).
6.2.10 Won't Calibrate to Proper Value
The most likely four causes are: [If during auto calibration]
(1) Fan not working. Replace fan.
(2) Contamination deposited inside capillary, preventing calibration gas from flowing at specified rate.
Return to Bacharach for repair (component replacement, adjustment).
(3) Air left inside tubing (immediately after refilling tank with R - 134a). Loosen gas bleed plug and let air
escape.
[If during manual calibration]
(4) Value entered in calibration differed from leak standard leak rate. Repeat calibration, entering the
correct value.
