Engine dies while using unit
|
Problem |
Corrective Action |
| Waste tank full | Empty waste tank |
| Out of fuel | Refill gas tank |
| Machine overheated | Check jet and filter in water box for clog |
| Water supply turned off | Check for kinks in hose or clogged incoming water filters |
| Oil level low | Add oil |
Starter won’t turn
|
Problem |
Corrective Action |
| Battery bad | Replace or recharge (be sure to check water level ) |
| Starter fuse blown | Fuse located inline near starter in yellow fuse holder |
| Battery cable bad | Replace or clean |
| Ignition switch is bad | Test if bad replace |
| Vacuum blower seized | Repair or replace |
| Starter solenoid defective | Test if bad replace |
Starter turns and has spark
|
Problem |
Corrective Action |
| Out of fuel | Refill tank an check for obstructions |
| Fuel filter clogged | Replace fuel filter |
| Air filter clogged | Replace air filter |
| Spark plugs fouled | Clean or replace as needed |
| Cylinder compression low | Test compression if low take to Kohler Service Center or Replace engine |
Starter turns won’t start -has spark
|
Problem |
Corrective Action |
| 2 lb sensor problems fuse # 3 | |
| Dirty inlet filter causing 2 lb sensor to prevent starting | Check inlet hose strainer and inlet y-strainer behind front panel |
| Low inlet water pressure causing 2 lb sensor to prevent starting | Check for supply hose kinks or blockage- if using fresh water tank check water pump |
| 2 lb sensor bad | Remove sensor fuse #3 if motor starts, test sensor replace if bad |
| Waste tank float fuse # 4 | |
| Float bad | Remove fuse #4 if motor starts test float if bad replace |
| High temp kill sensor fuse # 5 | |
| Water box too hot (temp back up older units without water box) | Remove bypass jet and filter from waste tank or water box clean and replace |
| Temp solenoid not opening | Check fuse, disassemble clean, test replace if bad |
| High temp sensor or switch gauge | Remove sensor fuse #5 if motor starts, test sensor replace if bad |
| Low oil pressure Sensor | Check oil, remove sensor wire if motor starts-stop motor check sensor and oil pressure with a pressure gauge, replace sensor if bad. If pressure is low take to Kohler Service Center. |
Vacuum blower seized
|
Problem |
Corrective Action |
| Blower won’t Turn | Check waste tank filter for clog or collapse |
| Check operation of relief valve is correct | |
| Lube well and turn with wrench or contact Roots Blower division |
Low vacuum
|
Problem |
Corrective Action |
| Vacuum low at tool | Check hoses and tool for clog |
| Vacuum low at tank | Check tank filter, check drain valve for leaks, check for bad or missing gasket clean or replace as needed |
Low water pressure
|
Problem |
Corrective Action |
| Water supply is off | Turn on water, check for kinks in hose or clogs |
| Water filter clogged | Check hose strainer, y-strainer and water box strainer |
| Water box jet missing or worn | Reinstall or replace |
| Debris clogging pressure hoses or quick connects | Check all clean or replace |
| Low volume | Check volume of water coming from pump outlet (3.0gpm-hypro…..4.0gpm cat) Rebuild if low |
| Belt loose or broken | Replace or tighten |
| Pressure regulator sticking or not adjusted | Lube or replace and lube o-rings adj. for 400 psi. |
| Pressure gauge bad | Replace Gauge |
| Tool filter or tips clogged | Inspect tool for clogs or dirty filters |
Water not hot
|
Problem |
Corrective Action |
| Jet in tool worn or too large | Replace jet in tool |
| Bypass jet in water box worn or missing | Replace or reinstall jet |
| Bypass on wand or tool left open | Close bypass valve |
Water too Hot
|
Problem |
Corrective Action |
| Water box bypass jet or filter clogged | Remove jet and filter clean or replace |
| Water bypass solenoid clogged or stuck | Clean or replace |
| Thermostat bad or out of adjustment | Adjust or replace |
No Chemical
|
Problem |
Corrective Action |
| No chemical | Refill container |
| Prime knob turned off or to prime | Turn knob to point at meter valve knob |
| Check valves not sealing or stuck | Clean or replace chemical pump check valves |
| Chemical pump diaphragm ruptured | Replace bad chemical pump diaphragm |
| Air leak | Tighten or replace chemical hose |
Chemical won’t prime
|
Problem |
Corrective Action |
| No chemical | Refill container |
| Valve not turned to prime setting | Arrow should point to the left |
| Pump too dry | Put chemical prime hose (the hose without the strainer) into the vacuum and seal with hand to suck the chemicals through the system |
| Diaphragm ruptured | Replace bad chemical pump diaphragm |
| Check valves not sealing or stuck | Clean or replace chemical pump check valves |
| Air leak | Tighten or replace chemical hoses |
| Water pump not operating correctly | Repair water pump |