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Required Conditions for the electric heaters to Activate:
1. The POWER (EMERGENCY STOP) and STEAM switches are on;
2. The float switch in the water tank detects liquid;
3. The low water probe sensor in the vessel detects water; AND.
4. The steam pressure should not be above 7 bar (101.5 psi).
Required Conditions for the Water Pump to Activate:
1. The POWER (EMERGENCY STOP) and STEAM switches are on;
2. Water is filled above the float switch level in the water tank;
3. Water is not detected by the high water probe sensor; AND
4. The water pump has not been running over 60 seconds during normal operations; OR
5. The water pump has not been running over 120 seconds at initial operation.
Warning! When steam pressure arises above 8.5 bar (123.2 psi):
When steam pressure gauge indicates above 8.5 bar (123.2 psi), you must turn off both
STEAM & POWER (EMERGENCY STOP) switches. Confirm the cause and take steps
necessary before operating the machine again. (Refer to “Troubleshooting Guide” number 8)
Determining the Cause of Malfunction:
1. Check heating elements
Check working status of electric heaters as a first step to figure out over-pressurizing. In the
event of over-pressurizing over 8.5 bar (123.2 psi), must turn the POWER (EMERGENCY STOP)
switch off.
Magnetic contactor which supplies power to electric heaters & pressure switches could be the
cause of over-pressurizing. Please contact your distributor or supplier.
2. Check feed-water pump
In the event of over-pressurizing over 8.5 bar (123.2 psi) when there is no combustion inside the
steam vessel, open the steam outlet valves and pull the steam gun trigger to release any
remaining steam pressure from the steam vessel.
Water probe sensor's water level detecting error could be the cause of over-pressurizing water.
Clean the water probe sensors or replace if necessary. (See “Maintenance” on page 14)
