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Curtis PMC 1223/33, 1225/35, 1227/37 Manual

8 — MAINTENANCE

MAINTENANCE

There are no user serviceable parts in the Curtis PMC 1223/33, 1225/35, and

1227/37 controllers. No attempt should be made to open, repair, or otherwise

modify the controller. Doing so may damage the controller and will void the

warranty. However, it is recommended that the controller be kept clean and dry

that its diagnostics history ﬁle be checked and cleared periodically.

CLEANING

1223/33 Controllers

The 1223/33 controllers do not have covers. Because there are exposed compo-

nents on the circuit board, no cleaning is recommended. Instead, the controller

should be shielded from dirt and contaminants.

1225/35 and 1227/37 Controllers

The 1225/35 and 1227/37 controllers are covered units. It is recommended that

the controller exterior be cleaned periodically (see procedure below).

When working around any battery powered vehicle, proper safety precau-

tions should be taken. These include, but are not limited to: proper training,

wearing eye protection, and avoiding loose clothing and jewelry.

Use the following cleaning procedure for routine maintenance.

1. Remove power by disconnecting the battery.

2. Discharge the capacitors in the controller by connecting a load (such as

a contactor coil or a horn) across the controller’s B+ and B- terminals.

3. Remove any dirt or corrosion from the connector area. The controller

should be wiped clean with a moist rag. Dry it before reconnecting the

battery.

4. Make sure the connections are tight.

DIAGNOSTIC HISTORY

The handheld programmer can be used to access the controller’s diagnostic history

ﬁle. Connect the programmer, press the MORE INFO key, and then—while continu-

ing to hold the MORE INFO key—press the DIAGNOSTICS key. The programmer will

read out all the faults that the controller has experienced since the last time the

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CAUTION

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Curtis 2000 Spécifications Page 73