Verify high-limit controls – Frymaster M2000 User Manual
Page 18

Verify high-limit controls
(continued)
©McDonald’s Corporation · Planned Maintenance Manual · Revised June 2008
Page 3 of 3
Frymaster Fryer
All models usi
ng an M2000 Computer
Quarterly
FR 2 Q2
7
Decide what to do if either 
control failed. 
If both controls pass the test, 
skip this step. 
 
If the fryer fails the first high-
limit control test but passes 
the second one, the vat can be 
used if that is absolutely nec-
essary. The computer controls 
should be replaced as soon as 
possible. Use extreme care 
when using the vat in this 
case. 
 
If the fryer fails the second 
high-limit control test, do not 
use the vat until the second 
(mechanical) high-limit con-
trol has been replaced. Call a 
service technician immedi-
ately. 
 
In the first test, if the heat 
indicator light goes out when 
the temperature is less than 
410°F (210°C), that means 
that the high-limit control has 
activated at a lower tempera-
ture than normal. You do not 
need to replace the computer 
controls in this case unless 
they are interfering with 
proper cooking. 
 
In the second test, if the dis-
play begins to alternate 
between “HI 2” and “bad” 
when the temperature is less 
than 425°F (218°C), that 
means that the high-limit con-
trol has activated at a lower 
temperature than normal. You 
do not need to replace the 
high-limit control in this case 
unless it is preventing you 
from testing the first high-
limit control. 
8
Discard oil. 
When you have completed 
both tests, allow the oil to 
cool for one hour. Then dis-
card the oil. Drain the oil into 
an oil removal cart. Use Neo-
prene Gloves 
 
The oil is may be hot.
9
Verify high-limit controls for all 
remaining fryers. 
Repeat steps 1 through 10 for 
all remaining fryers. 
