American Metal Ware
®
P400GNB-E
Page 18
Problem
No hot water,
contactor with
contacts closed
Recovery time is
very long
Possible Causes
• Line voltage connections at terminal
block, contactor or heater terminals
faulty.
• Heating element faulty.
• Contactor contacts faulty.
• Faulty heating element.
• Low temp no brew function not
allowing user to brew cold pot.
Solutions
• Secure all wire connections of the heater
circuit. Confirm that supply voltage is
present at the terminal block
and is active.
• Measure resistance of heating elements.
If open circuit between terminals and / or
tank body, replace parts.
• Check contacts of contactor. If corroded
or faulty, replace part.
• Check resistance across element with
power conductors disconnected. If resis-
tance is much less than 8 Ohms or much
more than 15 Ohms, replace part.
• Replace touchpad assemblies with
assemblies without that option if desired.
HEATING PROBLEMS
If you still need help, call our Service Department at (800) 568-5715 (Monday thru Friday 8:00 a.m. - 6:00 p.m.
Eastern time) or an authorized service center in your area. Please have the model and serial number ready so that
accurate information can be given.
Prior authorization must be obtained from Grindmaster Corporation’s Technical Services Department for all warranty
claims.
Troubleshooting (cont.)
