Garland MO/WO 3500, Installation, Operation And Maintenance Manual

Part Number 4532880 1/15 35

DANGEROUS ELECTRICAL VOLTAGE

 DANGER

Disconnect electric power at the main power disconnect 

for all equipment being serviced. 
Failure to disconnect the power at the main power 

supply disconnect could result in serious injury or death. 

The power switch DOES NOT disconnect all incoming 

power.

 DANGER

Do not open the unit. Maintenance and servicing work 

other than cleaning as described in this manual must be 

done by an authorized service personnel.

PERSONAL PROTECTION

n

Warning

Allow heated equipment to cool down before 

attempting to clean, service or move. Unit must be cool 

to touch and disconnected from power source.

Common Causes for Induction Unit Failure

One or more of the following conditions may affect the 

function or contribute to the failure of an induction unit:
•  Using unsuitable cookware such as non-induction pans, 

oversized pans, or damaged pans.

•  High ambient temperature.
•  Inadequate ventilation causing hot air to re-enter 

through the air intake slots.

•  Dirty air intake filter.
•  Empty pan is left on the hob when the unit is ON.

Symptoms

•  When a malfunction occurs, the induction unit may be 

in one of the following states:

•  The induction unit stops working immediately.
•  The induction unit continues to work in a power 

reduction mode.

•  The induction unit continues to work as usual.

•  For any unit equipped with an indicator lamp or a digital 

display, see section 

Troubleshooting Chart With Error 

Code / Indicator Lamp Flash Code

•  For any unit without an indicator lamp or a digital 

display, see section 

Troubleshooting Chart Without Error 

Code / Indicator Lamp Flash Code

•  NOTE: 

The cooling fan starts when the ambient temperature 

in the control area exceeds 130ºF/55ºC.
At heat sink temperature higher than 160ºF/70ºC, the 

controller automatically reduces power to keep the unit 

in normal operating conditions. The cooker runs in a 

non-continuous mode. This mode can be heard.

Boil Test: Performance of Cookware

(Test for 3.5kW or 5.0kW Coil)
Perform a boil test to verify the performance of a pan for 

induction cooking.
•  Add one liter of cold water into the pan (optimal when 

use pan with bottom diameter of 24cm) and bring it to 

boil. Compare the total boil time to the guideline below:

•  3.5kW Coil, approx. 140 seconds
•  5.0kW Coil, approx. 85 seconds

If time to boil exceeds the above guideline, then the pan is 

not suitable for achieving optimal efficiency. Please contact 

your supplier to purchase suitable induction pans. 
If the induction unit does not function as expected despite 

using quality induction pans, refer to the troubleshooting 

charts.

Section 5

Troubleshooting