Hi, I’ve got an older laser 4000. The undercarriage is not coming on. Output Y 40 does not come on when you select a wash with the undercarriage. Nor does the Mac air valve switch over the high pressure solenoid from spray arch to undercarriage. Nothing activates for the undercarriage rinse.
I can go into the diagnostics 63556 and turn it on manually and y40 comes on, but still nothing else. I have 24 V at the amplifier relay, the power light is on, on the relay, but not the other two lights, after manually turning it on. Could a bad transmitter or receiver eye cause this? Thanks.
I can go into the diagnostics 63556 and turn it on manually and y40 comes on, but still nothing else. I have 24 V at the amplifier relay, the power light is on, on the relay, but not the other two lights, after manually turning it on. Could a bad transmitter or receiver eye cause this? Thanks.
