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(Troubleshooting Codes cont.)
CODE POSSIBLE CAUSE POSSIBLE SOLUTION
20 Chemical too thick. Dilute chemical. Chemical should be the same consistency as water.
21 Worn seal or packing. Have parts cleaned or replaced by authorized service center.
22 Chemical build up in chemical injector. Have replaced by an authorized service center.
23 Worn or obstructed valves. Have replaced by authorized service center.
24 Worn unloader piston. Have replaced by authorized service center.
25 Worn or broken o-ring. Check and replace.
26 Loose hose connection. Tighten.
27 Piston packings worn. Have replaced by authorized service center.
28 Pump head or tubes damaged from freezing. Have replaced by authorized service center.
29 Oil seals worn. Have replaced by authorized service center
30 Loose drain plug. Tighten.
31 Worn drain plug o-ring Check and replace.
32 Worn fill plug o-ring. Check and replace.
33 Pump overfilled. Check for correct amount.
34 Incorrect oil used. Drain and fill with correct amount and type of oil.
35 Vent plug is clogged. Clean vent plug; blow air through it to remove any blockage. If prob-
lem per sists, replace plug.
36 Air filter filled with oil. Clean air filter element. Refer to engine instruction manual for
correct procedure.