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8. Trouble Shooting
1. Make sure the dry Hydrogen gas to be used must be
≥
99.995% purity.
2. The tube between the hydrogen pressure regulator and the fuel cell gas input is
required to be less than 30cm.
3. The inner diameter of the hydrogen supply tube is required to be more than 2mm.
4. The input pressure to the stack is required to be 0.45-0.55Bar.
If the system shuts down by itself check the following details:
1. Make sure you have connected all wires according to the diagram on page 15.
2. Make sure you have a hydrogen input supply at 0.45-0.55Bar to the stack.
3. Make sure the load is below 12W.
The blower does not run after the stack was connected and supplies with
hydrogen according to the System set up.
Contact Horizon Fuel Cell Technologies for support.
The open voltage (no load stack voltage) is less than 9.1V.
1. Inject water into the stack
(see Storage and re-use for details)
. And then re-test
open voltage.
Note
：
Make sure you have purged the water out of the stack as much as possible
before use.
2. Connect a load 5-6W to the stack. And then note the voltage and current to check if
they comply with our power curve. If not, inject water
(see Storage and re-use for
details)
and then run the stack again.
3. If the voltage and current from the 5-6W load comply with the power curve, increase
the load to 12W. If the voltage and current from the high power load does not comply
with the power curve, check the hydrogen pressure to the stack and the flow rate.
Meanwhile purge the stack and then observe the stack.
4. Run the stack at 7.8V for 30minutes. If the performance does not go up. Contact
Horizon Fuel Cell Technologies for support.