Troubleshooting: Filling, Heating, and Brewing

Brewing Problems

The brewing system consists of the following components:

 

•

Start and Stop, switches located in the top control panel.

 

•

Brew Timer, located in the top control section under the top cover.

•

Brew Valve, located in the top control section under the top cover.

 

 

 

 

 

Problem

 

Possible Cause

Service Check

Remedy

 

 

 

 

 

 

 

 

Brew volume too

Timer out of

Compare timer setting to

Adjust timer.

large or too small.

adjustment.

factory setting chart.

 

 

 

 

 

 

 

 

Pressure not

Fill valve should cycle on

If fill valve does not cycle or takes

 

 

and off frequently during

too long to refill, be sure water line

 

 

adequate at urn.

 

 

brew cycle when all brew

is 3/8" and pressure is uninterrupted

 

 

 

 

 

 

heads are used.

30psi.

 

 

 

 

 

 

 

Spray head clogged.

Visual

Clean all holes.

 

 

 

 

 

 

 

Brew valves clogged

Visual, inspect brew

Clean lime from valve. Seat cup or

 

 

with lime.

valve.

entire valve may need replacement.

 

 

 

 

 

Timer faulty.

Brew time does match

Replace timer.

 

 

 

timer setting. Timer not

 

 

 

 

adjustable.

 

 

 

 

 

Brew volume erratic.

Timer faulty.

Measure brew time for

If time is different from batch to

(there is always some

 

inconsistencies.

batch, replace timer.

small variation from

 

 

 

Pressure fluctuations

Check pressure at urn

Plumb water line so its pressure is

batch to batch)

 

 

at urn.

 

 

inlet.

not influenced by other appliances.

 

 

 

 

 

Brew will not

 

Circuit breaker

If circuit breaker button

If tripped, find cause and reset. If

start.

 

tripped or faulty.

is out, breaker is tripped.

faulty, replace.

 

 

 

 

 

 

 

 

Check 120V across

If 120V is across brew valve, but brew

 

 

Brew valve faulty.

valve doesn't open, replace coil or

 

 

brew valve.

 

 

 

valve.

 

 

 

Check for continuity

If no continuity, replace switch.

 

 

Stop switch faulty.

across stop switch

 

 

 

when not pressed.

 

 

 

 

 

 

 

 

 

 

 

 

Start switch faulty.

Check 120V between

If start switch does not provide 120V

 

 

S.S. and N on timer

 

 

start signal, replace switch.

 

 

 

 

 

 

when start is pressed.

 

 

 

 

 

 

 

 

 

 

 

Low temp/no brew

Water is above 190°F

Turn down brew thermostat, see

 

 

thermostat set too

(88°C), but HOT

adjustments.

 

 

high.

WATER light is off.

 

 

 

 

 

 

 

 

Timer faulty.

Check 120V between H

If no 120V BREW output from timer,

 

 

 

and N on timer. If OK,

replace timer.

 

 

 

check for 120V between

 

 

 

BREW and N on timer

 

 

 

 

after pressing start.

 

 

 

 

 

Spray head will not

Boiling tank.

If drip is from right

Turn down thermostat. If that doesn't

stop dripping water.

 

side, check for water

cure, check for faulty thermostat or

(spray heads normally

 

from overflow outlet at

heater relay.

drip slightly after

 

top of tank.

 

brew)

 

Limed up brew valve.

Visual check of valve.

Clean valve. Valve seal or entire

 

 

 

 

valve may need replacement.

 

 

 

 

 

Shuttle Brewers & Airpot/Shuttle Brewers

Page 14

Page 13 Page 15
Page 14
Image 14
Grindmaster P400ESHP instruction manual Problem Possible Cause Service Check Remedy Brew volume too
Page 13 Page 15

P400ESHP specifications

The Grindmaster P400ESHP is a top-of-the-line espresso machine designed for both efficiency and performance, catering to the needs of coffee professionals and enthusiasts alike. Its robust construction and innovative features make it a versatile choice for various establishments, from bustling coffee shops to high-end restaurants.

One of the primary features of the P400ESHP is its dual boiler system. This technology allows for simultaneous brewing and steaming, significantly reducing wait times during peak hours. The independent temperature control for each boiler ensures that each espresso shot is extracted under optimal conditions, enhancing the flavor and aroma profile of the coffee.

Additionally, the Grindmaster P400ESHP incorporates advanced PID temperature control. This precision technology ensures consistent temperature stability, which is crucial for producing high-quality espresso. The ability to adjust temperatures in real-time gives baristas the flexibility to experiment with different coffee beans and brewing methods, resulting in a bespoke coffee experience.

The P400ESHP is equipped with a user-friendly touchscreen interface that simplifies navigation through its various settings. Baristas can easily program drink recipes and access maintenance reminders, streamlining workflow and allowing for greater focus on quality beverage preparation.

Moreover, the machine features a powerful 20-bar pump that produces rich crema, enhancing the overall aesthetics and taste of the espresso. The high-performance steam wand is ergonomic, providing excellent control over frothing and texturing milk for lattes and cappuccinos. The wand’s ability to produce dry steam ensures that milk is heated quickly without excess moisture.

In terms of design, the Grindmaster P400ESHP boasts a sleek, stainless steel body that not only looks professional but also ensures durability in a busy environment. It is thoughtfully designed for easy access to internal components, facilitating straightforward maintenance and service.

The P400ESHP also focuses on energy efficiency, with an automatic shut-off feature that conserves power when the machine is not in use. This not only lowers operational costs but also aligns with environmentally-conscious practices.

In conclusion, the Grindmaster P400ESHP stands out as an advanced espresso machine that combines technology, efficiency, and user-centered design. Its outstanding features make it an ideal choice for coffee professionals seeking to elevate their beverage offerings while maintaining consistency and quality.
Top Page Image Contents